The json information API
There is a json-based information interface from where applications (such as the firefox "bubbamon" tool) can get information automatically.
This is valid from B3 version 2.4.1 and onwards.
http://b3/admin/ajax_status/? ..where ? can be: uptime hardware version printers disks (note: the 'size' field is in 512 Byte blocks) vgs mds fstab free_space (gives free space for home and system partitions, respectively, in bytes) total_space
All of these are available with user level authentication ('admin' not required).